LED video display LED Module Malfunction and Solution
1. Phenomenon: the whole display is flickering.
Problem: signal poor connection.
Solution: re-fix or re-connect signal cable.
2. Phenomenon: dusky LED
Problem: The volage of switching power supply is unconsistent with LED voltage tag.
Solution: make sure the volage of swtiching power supply is consistent with LED. voltage tag.¡¡
3. Phenomenon: partial LEDs do not work.
Problem:
A. contact direction correct or not.
B. power output wiring correct or not.
C. power wire anti-inserted or connectted inversely.
Solution:
A. re-connect in a correct way.
B. ensure the red wire connect the positive pole,black wire connect the negative pole.
C. check partial the wrong connection , re-connect.
4. Phenomenon: all LEDs do not work
Problem:
A. no output of the switching power supply.
B. wrong power connection.
solution:
A.connect the power switch input and test.
B. check the positive and negative pole of the power supply whether it is right or not.
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